Water, The Hardness of, A New Method of Making a Volumetric Solution for Determining: C. R. C. Tichborne, 424.

Waters, Potable, Estimation of Nitrates
in: J. West-Knights, 144.
Waters, Potable, The Detection of Lead
in, by means of Potassium Bichro-
mate: S. Harvey, 139.

Weidel, H.: Dichinoline, 70.
Weller, H., and A. Claus: Cinchoni-
dine and Homo-cinchonidine, 54.
Wellingtonia Gigantea: G. Lunge and
T. Steinkauler, 194.

West, M., and M. Zuckschwert: Esti-
mation of Potassium as Platino-
chloride, 142.
West-Knights, J.: Estimation of Ni-
trates in Potable Waters, 144.
Weyl, T., and H. Zeitler: The Absorp-
tion of Oxygen by Pyrogallol in Al-
kaline Solutions, 86.
Wheeler, J. Iodine-yielding Algæ,
A Proposal for their more Direct
Use in Pharmacy, 219.
Whiffen, W. G.: New Alkaloids from
Cinchona Cuprea, 186.

White Ash: Prof. F. B. Power, 178. Wideman, M.: Cotton-seed Oil, 216.

Widmann, O.: Partial Synthesis of Thymol, 25.

Wieser, H. Pyroguajacol, 108. Williams, Dr. A. W. W.: Formula for the Local Treatment of Diphtheria, 250.

Williams, M. W., and E. L. Cleaver: Note on Extract of Aconite, 223. Wine, Condurango : Dr. A. Hoffmann, 263.

Wine, Detection of Logwood Colouring in: A. Pezzi, 122.

Wine, Oil of: E. C. Harting, 105. Wolff, Dr. L.; Oleates and Oleo-Palmitates, 258.

Wood, Dr. T. F.: Liatris Odoratissima, 197.

Woodland, J.: Report on the Strength of Commercial Samples of Tincture, and Extract of Opium, 514. Warmley, Dr. J. G.: Researches on the Root of Gelsemium Sempervirens, 169.

Wrightia Antidysenterica: K. L. Dey,

181.

X.

Xanthine, Conversion of, into Theobromine and Caffeine: E. Fischer, 76.

Y.

Yeast, Pressed, Estimation of Starch as an Adulterant in: E. Geissler, 122.

Yeast, Pressed, Estimation of Starch as an Adulterant in: M. Haydock, 122.

Yvon, P.: A Process for Decolorizing Carbolic Acid, 249.

Yvon, P.: The Purity of Chloroform, 99.

Z.

Zabrocki and Harnack, MM.: Sassy Bark, 179.

Zanthoxylum Coco, 219.

Zecchini, M. Test for Distinguishing Cotton-seed Oil from Olive Oil, 216. Zeitler, H., and T. Weyl: The Absorption of Oxygen by Pyrogallol in Alkaline Solutions, 86.

Zimmermann, C.: The Use of Po-
tassium Permanganate in Volume-
tric Analysis, 143.

Zinc, Separation of Cadmium from:
M. Kupfferschlaeger, 139.
Zinc Sulphate, Purification of: M.
Prunier, 138.

Zinc, The Volumetric Estimation of,
by means of Potassium Ferro-
cyanide: R. W. Mahon, 138.

Zingiber Officinale, The Constituents
of: Dr. J. C. Thresh, 172.
Zinno, S. Sulphophenate of Quinine,
52.

Zizyphus Mistol, 219.

Zuckschwert, M., and M. West: Esti-
mation of Potassium as Platino-
chloride, 142.

Zygadenus Paniculatus: E. Jones,
171.